Help w/ my mercury blue band

I have a 1984 skeeter ss-1 sport fisherman with a blue band mercury 40 hp
i was told the boat was bought brand new with the motor
now the motor is practically brand new never used cause of lake restrictions and he bought a 9.9 as a kicker motor

im looking for help and guidance
does this motor have good reviews
will this motor charge my battery
50.1 mix i assume
yetserday it started ran for 20 minutes with ear muffs and the tell tale was great

shut it off did some lunch fired it back up after lunch just to see if it would start no tell tale what so ever

im going outside to get the serial number and take pictures to help i dentiy my motor is it is indeed a 1984 motor

Re: Help w/ my mercury blue band

serial number is
6416064

then on the anti cavatation plaet is an oval sticker that is like a hologram sticker that has

40
13710 on the hologram sticker

Re: Help w/ my mercury blue band

any help would me much appreciated

Re: Help w/ my mercury blue band

i have a 50 hp that does the same thing even with a new waterpump as far as the tail tell goes put it in the water and will be fine, it should charge the battery and u can check that with a multi meter hook it up to the battery and should read 12. something then start it up and hook it up again and should read higher, 50:1 mix is fine

Re: Help w/ my mercury blue band

I thought if it wasn't peeing don't run it?

Re: Help w/ my mercury blue band

you said it does some times and not others i would do this at the bottom there should be a plate where the muffs go on take them off and shoot some air backwards throu the pee hole if its clear take it to the lake and see what happens will take about 10 to 15 seconds for water to flow if no water then replace if water then have fun

Re: Help w/ my mercury blue band

Ok took it to the lake started right up idled no pee ran at low throttle still nothing noticed steam comming from the pee holeso I throttled up to get back to the dock noticedsome sporratic stream off an on and lots of white smoke shut it down and I'm home posting this

Re: Help w/ my mercury blue band

shoot some air through it backwards and see what happens with muffs on sometimes u get gunk in there if nothing u will have to drop lower unit and to put it back on and two people make it a lot easier

Re: Help w/ my mercury blue band

Never did one but engines in general come easy quads wetbikes cars any guidance on the steps on disaembly

Re: Help w/ my mercury blue band

i do mine with motor in reverse take out bolts remove lower unit take cover off remove old waterpump being careful of key way and key imspect gaskets and replace if required inspect houseing cover if all looks put new water pump on i shoot it with some wd40 just to lube it up a little then slide cover down and as waterpump goes into cover turn shaft counter clockwise reinstall bolts on cove and reinstall lower unit make sure water tube goes intu water pump houseing and shift linkage hooks back up correctly and reinstall bolts. cheak and make sure gears work then put on muffs and try it out when installing shift linkage helps to have someone move shifter lightly and when installing shasft spindle helps to have someone turn flywheel by hand slowly and what ever u do do not pry lower unit off with anything